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At least 253 records · Page 14Linked to original sources
PubMed1998

Myocardial ischaemia un-masked by transesophageal atrial pacing combined with two-dimensional transthoracic echocardiography in a pediatric patient: a case report.

We describe a case of a child operated on for an anomalous origin of the left coronary artery from the pulmonary artery and proximal hypoplasia of the anomalous coronary, in whom residual inducible myocardial ischaemia was detected by means of transesophageal atrial pacing combined with transthoracic echocardiography.

Cardiac Pacing, Artificial↗
PubMed1997

Perfusion imaging by un-inverted flow-sensitive alternating inversion recovery (UNFAIR).

A new pulse sequence for estimating cerebral blood flow called UNFAIR, which uses a combination of sequential hyperbolic secant preparatory pulses, is introduced. This sequence is based on the same generalized conditions as previously introduced inversion recovery techniques except that the spins in the image slice of interest always have +z magnetization and the in-flowing spins are alternately inverted and uninverted. CBF-weighted images of rat brain under conditions of normocpnia and hypercapnia are presented and demonstrate the expected CBF response. A model describing the signal response to this pulse sequence is also presented and compared with in-vivo data acquired from gray and white matter.

Animals↗
PubMed1999

Variation in hippocampal dynorphin b-immunoreactive mossy fiber terminal fields of apomorphine-(un)susceptible rats.

The size of distinct hippocampal sub-fields were measured in the apomorphine-susceptible and apomorphine-unsusceptible rat lines. Mossy fiber terminal fields were delineated using dynorphin B immunoreactivity and area measurements were taken from (1) the supra-pyramidal mossy fiber terminal field; (2) the intra- and infra-pyramidal mossy fiber terminal field; (3) the hilus of the fascia dentata (4) the non dynorphin B immunoreactive area of the regio inferior and fascia dentata and (5) the total area of regio inferior and fascia dentata. The data indicate that statistically significant differences in the morphometry of the hippocampal subfields of the apomorphine susceptible and unsusceptible rats are confined to the intra- and infra terminal field: the relative size of the left and right intra- and infra terminal field of apomorphine unsusceptible rats are significantly larger than those of the apomorphine susceptible rats. These data explain at least in part the differential response of these rats to novelty.

Animals↗